

812 

RWUS32 KSTL 191816

FFSSTL

ILZ100-101-192000-



FLASH FLOOD STATEMENT

108 PM CDT THU JUL 19 2001



...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR ST. CLAIR AND MADISON

COUNTIES UNTIL 300 PM CDT...



AT 108 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A CLUSTER OF 

SHOWERS AND THUNDERSTORMS PASSED THROUGH THE AREA AGAIN THROUGH THE 

LUNCH HOUR. NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATES 

INDICATE THAT 3 TO 5 INCHES OF RAIN HAS FALLEN THUS FAR IN A NARROW

STRIP FROM JUST EAST OF ALTON ILLINOIS SOUTH TO JUST WEST OF 

COLLINSVILLE. 



AT 115 PM GENERALLY LIGHT SHOWERS WERE DOTTING THE WARNED 

AREA...HOWEVER NEW THUNDERSTORMS WERE FORMING OVER JERSEY COUNTY 

AGAIN AND SOME ADDITIONAL RAINFALL...THOUGH NOT AS HEAVY AS 

EARLIER...CAN STILL OCCUR.



REMEMBER THAT RUNOFF FROM STORMS SOMETIMES TAKES A FEW MINUTES TO A 

COUPLE OF HOURS TO MAXIMIZE SO FLOODED AREAS COULD STILL POSSIBLY 

INCREASE IN DEPTH THROUGH THE AFTERNOON. 



KEEP ABREAST OF LATEST WEATHER DEVELOPMENTS AND POSSIBLE ADDITIONAL 

STATEMENTS OR WARNINGS FOR THIS RAINFALL EVENT.   



EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL 

CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY

ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER 

LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.



$$

PEDIGO

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